1. Dolphins

2. Dolphins live in seas and oceans. They are not afraid of the human and help us to be saved from sharks. They are very funny, clever and friendly. Avalins are the cleverest of kinds of dolphins. Their brain weighs 1700 g, and the brain of a person 1400 g. Killer whales are predators. They are also called dolphin-murderers. They eat other dolphins, birds, and sometimes whales.

3. Dolphins Inia are the most beautiful dolphin. It is born grey and when it grows it turns pink. They are inhabited in 20 countries of the world. Nirvanas - are dolphins too. They have only 2 teeth. Males’ tooth reaches 3 m. Nirvanas have this long tooth for battles for females. So, scientists call dolphins people of the sea. Nowadays the number of snow leopards is growing smaller. If this tendency goes on, soon we will see these wonderful creatures only in zoos.

4. The end